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Finding the Fourth Proportional to 245,312.96, 367,747.70 and 87,503.90

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Solution

The fourth proportional to 245,312.96, 367,747.70 and 87,503.90 is: 131,176.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,312.96 : 367,747.70 = 87,503.90 : x
  2. Step 2: Convert to fraction form
    245,312.96/367,747.70 = 87,503.90/x
  3. Step 3: Cross multiply
    245,312.96x = 367,747.70 × 87,503.90
  4. Step 4: Simplify right side
    245,312.96x = 32,179,355,689.77
  5. Step 5: Solve for x
    x = 32,179,355,689.77/245,312.96
  6. Step 6: Final answer
    x = 131,176.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.